Marauders Marriage Law (HP AU)(OCs Included!)

What if the Dark Lord had been vanquished in the Marauder's final year at Hogwarts? With the wizard population so low after the war, how will numbers be boosted again?

*****This is an AU, so SOME canon may be disregarded. Though I try to stay as close to canon as possible, there will be some creative license taken, and some OCs. Anyways, I hope you enjoy!*****

*****Also, I don't own the Harry Potter series or other stuff, all I own is the OCs.*****